Abstract
This study explores the electrochemical performance of Ni-Sn and Ni-Sn-C thin film anodes in rechargeable lithium-ion batteries. A new strategy of forming a Ni-Sn-C multilayered thin film is proposed here, where nickel-coated carbon powder is used as a source material to incorporate carbon atoms into the thin film in a controlled manner. Galvanostatic half-cell measurements demonstrated that the Ni-Sn thin film shows a gradually decreasing capacity with cycling, whereas the Ni-Sn-C thin film exhibits a longer cycle life with good capacity retention. The improved cycle performance of the Ni-Sn-C electrode is attributed to its high tolerance against electrode swelling, which is closely associated with the stress-buffering action of nickel and the homogeneous distribution on nanoparticles induced by carbon.
| Original language | English |
|---|---|
| Pages (from-to) | 585-593 |
| Number of pages | 9 |
| Journal | Electrochimica Acta |
| Volume | 135 |
| DOIs | |
| Publication status | Published - 20 Jul 2014 |
Funding
This work is a part of the research project 110M148 approved by The Scientific and Technological Research Council of Turkey (TUBİTAK). Support from David Howell (Team Lead), Tien Duong, and Peter Faguy of the Vehicle Technologies Program, Hybrid and Electric Systems, at the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, is gratefully acknowledged.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | |
| Office of Energy Efficiency and Renewable Energy |
Keywords
- Carbon
- Electron beam evaporation
- Lithium-ion batteries
- Ni-Sn thin film anode
